Speaking of all the songs he has written，I think this is probably his one.(2013·全国Ⅱ)
A. better－known
B. well－known
C. best－known
D. most－known
网友回答
A. better－known
B. well－known
(答案→)C. best－known
D. most－known
解析：根据语境all the songs he has written可知用最高级。